TY - RPRT TI - Low-Cost Real-Time Fiber-Optic Distance Sensing for OPM-based Biomagnetic Measurements AU - Huebner, M. AU - Marquetand, J. AU - Yang, H. PY - 2026 DO - 10.64898/2026.10.27.762118 UR - https://www.biorxiv.org/content/10.64898/2026.10.27.762118v1 ID - 10.64898/2026.10.27.762118 ER -